/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 1008 by schoenebeck, Wed Jan 3 17:49:44 2007 UTC revision 1934 by schoenebeck, Sun Jul 12 10:35:55 2009 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *   *   Copyright (C) 2005 - 2009 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 25  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "common/global_private.h"
29  #include "engines/EngineFactory.h"  #include "engines/EngineFactory.h"
30  #include "engines/EngineChannelFactory.h"  #include "engines/EngineChannelFactory.h"
31    #include "plugins/InstrumentEditorFactory.h"
32  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
33  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
34  #include "drivers/midi/MidiInstrumentMapper.h"  #include "drivers/midi/MidiInstrumentMapper.h"
35    #include "common/Features.h"
36  #include "network/lscpserver.h"  #include "network/lscpserver.h"
37    
38  namespace LinuxSampler {  namespace LinuxSampler {
# Line 68  namespace LinuxSampler { Line 71  namespace LinuxSampler {
71      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
72          dmsg(2,("SamplerChannel: Assigning engine type..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
73    
74            if (pEngineChannel) {
75                if (!strcasecmp(pEngineChannel->EngineName().c_str(), EngineType.c_str())) {
76                    dmsg(2,("OK\n"));
77                    return;
78                }
79            }
80    
81            fireEngineToBeChanged();
82    
83          // create new engine channel          // create new engine channel
84          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
85          if (!pNewEngineChannel) throw Exception("Unknown engine type");          if (!pNewEngineChannel) throw Exception("Unknown engine type");
86    
87          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index          pNewEngineChannel->SetSamplerChannel(this);
         pNewEngineChannel->iSamplerChannelIndex = Index();  
88    
89          // dereference midi input port.          // dereference midi input port.
90          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
# Line 104  namespace LinuxSampler { Line 115  namespace LinuxSampler {
115          this->iMidiPort        = 0;          this->iMidiPort        = 0;
116    
117          pEngineChannel->StatusChanged(true);          pEngineChannel->StatusChanged(true);
118            fireEngineChanged();
119          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
120      }      }
121    
# Line 205  namespace LinuxSampler { Line 216  namespace LinuxSampler {
216          throw Exception("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
217      }      }
218    
219        Sampler* SamplerChannel::GetSampler() {
220            return pSampler;
221        }
222    
223        void SamplerChannel::AddEngineChangeListener(EngineChangeListener* l) {
224            llEngineChangeListeners.AddListener(l);
225        }
226    
227        void SamplerChannel::RemoveEngineChangeListener(EngineChangeListener* l) {
228           llEngineChangeListeners.RemoveListener(l);
229        }
230    
231        void SamplerChannel::RemoveAllEngineChangeListeners() {
232           llEngineChangeListeners.RemoveAllListeners();
233        }
234    
235        void SamplerChannel::fireEngineToBeChanged() {
236            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
237                llEngineChangeListeners.GetListener(i)->EngineToBeChanged(Index());
238            }
239        }
240    
241        void SamplerChannel::fireEngineChanged() {
242            for (int i = 0; i < llEngineChangeListeners.GetListenerCount(); i++) {
243                llEngineChangeListeners.GetListener(i)->EngineChanged(Index());
244            }
245        }
246    
247      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
248          MidiInputPort* pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
249          MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();          MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
# Line 219  namespace LinuxSampler { Line 258  namespace LinuxSampler {
258      // * Sampler      // * Sampler
259    
260      Sampler::Sampler() {      Sampler::Sampler() {
261            eventHandler.SetSampler(this);
262            uiOldTotalVoiceCount = uiOldTotalStreamCount = 0;
263      }      }
264    
265      Sampler::~Sampler() {      Sampler::~Sampler() {
# Line 229  namespace LinuxSampler { Line 270  namespace LinuxSampler {
270          return mSamplerChannels.size();          return mSamplerChannels.size();
271      }      }
272    
273        void Sampler::AddChannelCountListener(ChannelCountListener* l) {
274            llChannelCountListeners.AddListener(l);
275        }
276    
277        void Sampler::RemoveChannelCountListener(ChannelCountListener* l) {
278           llChannelCountListeners.RemoveListener(l);
279        }
280    
281        void Sampler::fireChannelCountChanged(int NewCount) {
282            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
283                llChannelCountListeners.GetListener(i)->ChannelCountChanged(NewCount);
284            }
285        }
286    
287        void Sampler::fireChannelAdded(SamplerChannel* pChannel) {
288            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
289                llChannelCountListeners.GetListener(i)->ChannelAdded(pChannel);
290            }
291        }
292    
293        void Sampler::fireChannelToBeRemoved(SamplerChannel* pChannel) {
294            for (int i = 0; i < llChannelCountListeners.GetListenerCount(); i++) {
295                llChannelCountListeners.GetListener(i)->ChannelToBeRemoved(pChannel);
296            }
297        }
298    
299        void Sampler::AddAudioDeviceCountListener(AudioDeviceCountListener* l) {
300            llAudioDeviceCountListeners.AddListener(l);
301        }
302    
303        void Sampler::RemoveAudioDeviceCountListener(AudioDeviceCountListener* l) {
304            llAudioDeviceCountListeners.RemoveListener(l);
305        }
306    
307        void Sampler::fireAudioDeviceCountChanged(int NewCount) {
308            for (int i = 0; i < llAudioDeviceCountListeners.GetListenerCount(); i++) {
309                llAudioDeviceCountListeners.GetListener(i)->AudioDeviceCountChanged(NewCount);
310            }
311        }
312    
313        void Sampler::AddMidiDeviceCountListener(MidiDeviceCountListener* l) {
314            llMidiDeviceCountListeners.AddListener(l);
315        }
316    
317        void Sampler::RemoveMidiDeviceCountListener(MidiDeviceCountListener* l) {
318            llMidiDeviceCountListeners.RemoveListener(l);
319        }
320    
321        void Sampler::fireMidiDeviceCountChanged(int NewCount) {
322            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
323                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCountChanged(NewCount);
324            }
325        }
326    
327        void Sampler::fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
328            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
329                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceToBeDestroyed(pDevice);
330            }
331        }
332    
333        void Sampler::fireMidiDeviceCreated(MidiInputDevice* pDevice) {
334            for (int i = 0; i < llMidiDeviceCountListeners.GetListenerCount(); i++) {
335                llMidiDeviceCountListeners.GetListener(i)->MidiDeviceCreated(pDevice);
336            }
337        }
338    
339        void Sampler::AddVoiceCountListener(VoiceCountListener* l) {
340            llVoiceCountListeners.AddListener(l);
341        }
342    
343        void Sampler::RemoveVoiceCountListener(VoiceCountListener* l) {
344            llVoiceCountListeners.RemoveListener(l);
345        }
346    
347        void Sampler::fireVoiceCountChanged(int ChannelId, int NewCount) {
348            std::map<uint, uint>::iterator it = mOldVoiceCounts.find(ChannelId);
349            if (it != mOldVoiceCounts.end()) {
350                uint oldCount = it->second;
351                if (NewCount == oldCount) return;
352            }
353    
354            mOldVoiceCounts[ChannelId] = NewCount;
355    
356            for (int i = 0; i < llVoiceCountListeners.GetListenerCount(); i++) {
357                llVoiceCountListeners.GetListener(i)->VoiceCountChanged(ChannelId, NewCount);
358            }
359        }
360    
361        void Sampler::AddStreamCountListener(StreamCountListener* l) {
362            llStreamCountListeners.AddListener(l);
363        }
364    
365        void Sampler::RemoveStreamCountListener(StreamCountListener* l) {
366            llStreamCountListeners.RemoveListener(l);
367        }
368    
369        void Sampler::fireStreamCountChanged(int ChannelId, int NewCount) {
370            std::map<uint, uint>::iterator it = mOldStreamCounts.find(ChannelId);
371            if (it != mOldStreamCounts.end()) {
372                uint oldCount = it->second;
373                if (NewCount == oldCount) return;
374            }
375    
376            mOldStreamCounts[ChannelId] = NewCount;
377    
378            for (int i = 0; i < llStreamCountListeners.GetListenerCount(); i++) {
379                llStreamCountListeners.GetListener(i)->StreamCountChanged(ChannelId, NewCount);
380            }
381        }
382    
383        void Sampler::AddBufferFillListener(BufferFillListener* l) {
384            llBufferFillListeners.AddListener(l);
385        }
386    
387        void Sampler::RemoveBufferFillListener(BufferFillListener* l) {
388            llBufferFillListeners.RemoveListener(l);
389        }
390    
391        void Sampler::fireBufferFillChanged(int ChannelId, String FillData) {
392            for (int i = 0; i < llBufferFillListeners.GetListenerCount(); i++) {
393                llBufferFillListeners.GetListener(i)->BufferFillChanged(ChannelId, FillData);
394            }
395        }
396    
397        void Sampler::AddTotalStreamCountListener(TotalStreamCountListener* l) {
398            llTotalStreamCountListeners.AddListener(l);
399        }
400    
401        void Sampler::RemoveTotalStreamCountListener(TotalStreamCountListener* l) {
402            llTotalStreamCountListeners.RemoveListener(l);
403        }
404    
405        void Sampler::fireTotalStreamCountChanged(int NewCount) {
406            if (NewCount == uiOldTotalStreamCount) return;
407            uiOldTotalStreamCount = NewCount;
408    
409            for (int i = 0; i < llTotalStreamCountListeners.GetListenerCount(); i++) {
410                llTotalStreamCountListeners.GetListener(i)->TotalStreamCountChanged(NewCount);
411            }
412        }
413    
414        void Sampler::AddTotalVoiceCountListener(TotalVoiceCountListener* l) {
415            llTotalVoiceCountListeners.AddListener(l);
416        }
417    
418        void Sampler::RemoveTotalVoiceCountListener(TotalVoiceCountListener* l) {
419            llTotalVoiceCountListeners.RemoveListener(l);
420        }
421    
422        void Sampler::fireTotalVoiceCountChanged(int NewCount) {
423            if (NewCount == uiOldTotalVoiceCount) return;
424            uiOldTotalVoiceCount = NewCount;
425    
426            for (int i = 0; i < llTotalVoiceCountListeners.GetListenerCount(); i++) {
427                llTotalVoiceCountListeners.GetListener(i)->TotalVoiceCountChanged(NewCount);
428            }
429        }
430    
431        void Sampler::AddFxSendCountListener(FxSendCountListener* l) {
432            llFxSendCountListeners.AddListener(l);
433        }
434    
435        void Sampler::RemoveFxSendCountListener(FxSendCountListener* l) {
436            llFxSendCountListeners.RemoveListener(l);
437        }
438    
439        void Sampler::fireFxSendCountChanged(int ChannelId, int NewCount) {
440            for (int i = 0; i < llFxSendCountListeners.GetListenerCount(); i++) {
441                llFxSendCountListeners.GetListener(i)->FxSendCountChanged(ChannelId, NewCount);
442            }
443        }
444    
445        void Sampler::EventHandler::EngineToBeChanged(int ChannelId) {
446            // nothing to do here
447        }
448    
449        void Sampler::EventHandler::EngineChanged(int ChannelId) {
450            EngineChannel* engineChannel = pSampler->GetSamplerChannel(ChannelId)->GetEngineChannel();
451            if(engineChannel == NULL) return;
452            engineChannel->AddFxSendCountListener(this);
453        }
454    
455        void Sampler::EventHandler::FxSendCountChanged(int ChannelId, int NewCount) {
456            pSampler->fireFxSendCountChanged(ChannelId, NewCount);
457        }
458    
459    
460      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
461          // if there's no sampler channel yet          // if there's no sampler channel yet
462          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
463              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
464              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
465              LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));              fireChannelAdded(pChannel);
466                fireChannelCountChanged(1);
467                pChannel->AddEngineChangeListener(&eventHandler);
468              return pChannel;              return pChannel;
469          }          }
470    
# Line 249  namespace LinuxSampler { Line 479  namespace LinuxSampler {
479                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
480                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
481                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
482                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));                  fireChannelAdded(pChannel);
483                    fireChannelCountChanged(SamplerChannels());
484                    pChannel->AddEngineChangeListener(&eventHandler);
485                  return pChannel;                  return pChannel;
486              }              }
487              throw Exception("Internal error: could not find unoccupied sampler channel index.");              throw Exception("Internal error: could not find unoccupied sampler channel index.");
# Line 258  namespace LinuxSampler { Line 490  namespace LinuxSampler {
490          // we have not reached the index limit so we just add the channel past the highest index          // we have not reached the index limit so we just add the channel past the highest index
491          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
492          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
493          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));          fireChannelAdded(pChannel);
494            fireChannelCountChanged(SamplerChannels());
495            pChannel->AddEngineChangeListener(&eventHandler);
496          return pChannel;          return pChannel;
497      }      }
498    
# Line 274  namespace LinuxSampler { Line 508  namespace LinuxSampler {
508          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
509          for (; iterChan != mSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
510              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
511                    fireChannelToBeRemoved(pSamplerChannel);
512                    mOldVoiceCounts.erase(pSamplerChannel->Index());
513                    mOldStreamCounts.erase(pSamplerChannel->Index());
514                    pSamplerChannel->RemoveAllEngineChangeListeners();
515                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
516                  delete pSamplerChannel;                  delete pSamplerChannel;
517                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));                  fireChannelCountChanged(SamplerChannels());
518                  return;                  return;
519              }              }
520          }          }
# Line 288  namespace LinuxSampler { Line 526  namespace LinuxSampler {
526          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
527      }      }
528    
529        void Sampler::RemoveAllSamplerChannels() {
530            /*
531             * In maps iterator invalidation occurs when the iterator point
532             * to the element that is being erased. So we need to copy the map
533             * by calling GetSamplerChannels() to prevent that.
534             */
535            SamplerChannelMap chns = GetSamplerChannels();
536            SamplerChannelMap::iterator iter = chns.begin();
537            for(; iter != chns.end(); iter++) {
538                RemoveSamplerChannel(iter->second);
539            }
540        }
541    
542      std::vector<String> Sampler::AvailableAudioOutputDrivers() {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
543          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
544      }      }
# Line 304  namespace LinuxSampler { Line 555  namespace LinuxSampler {
555          // create new device          // create new device
556          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
557    
558          // add new audio device to the audio device list          fireAudioDeviceCountChanged(AudioOutputDevices());
         for (uint i = 0; ; i++) { // seek for a free place starting from the beginning  
             if (!mAudioOutputDevices[i]) {  
                 mAudioOutputDevices[i] = pDevice;  
                 break;  
             }  
         }  
   
         LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));  
559          return pDevice;          return pDevice;
560      }      }
561    
562      uint Sampler::AudioOutputDevices() {      uint Sampler::AudioOutputDevices() {
563          return mAudioOutputDevices.size();          return AudioOutputDeviceFactory::Devices().size();
564      }      }
565    
566      uint Sampler::MidiInputDevices() {      uint Sampler::MidiInputDevices() {
567          return mMidiInputDevices.size();          return MidiInputDeviceFactory::Devices().size();
568      }      }
569    
570      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
571          return mAudioOutputDevices;          return AudioOutputDeviceFactory::Devices();
572      }      }
573    
574      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
575          return mMidiInputDevices;          return MidiInputDeviceFactory::Devices();
576      }      }
577    
578      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
579          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          if (pDevice) {
580          for (; iter != mAudioOutputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
581              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
582                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
583                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the audio output device.");
584                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");  
585                //TODO: should we add fireAudioDeviceToBeDestroyed() here ?
586                  // disable device              AudioOutputDeviceFactory::Destroy(pDevice);
587                  pDevice->Stop();              fireAudioDeviceCountChanged(AudioOutputDevices());
588            }
589        }
590    
591                  // remove device from the device list      void Sampler::DestroyAllAudioOutputDevices() throw (Exception) {
592                  mAudioOutputDevices.erase(iter);          /*
593             * In maps iterator invalidation occurs when the iterator point
594             * to the element that is being erased. So we need to copy the map
595             * by calling GetAudioOutputDevices() to prevent that.
596             */
597            std::map<uint, AudioOutputDevice*> devs = GetAudioOutputDevices();
598            std::map<uint, AudioOutputDevice*>::iterator iter = devs.begin();
599            for (; iter != devs.end(); iter++) {
600                AudioOutputDevice* pDevice = iter->second;
601    
602                  // destroy and free device from memory              // skip non-autonomous devices
603                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
604    
605                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));              DestroyAudioOutputDevice(pDevice);
                 break;  
             }  
606          }          }
607      }      }
608    
609      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
610          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          if (pDevice) {
611          for (; iter != mMidiInputDevices.end(); iter++) {              // check if there are still sampler engines connected to this device
612              if (iter->second == pDevice) {              for (SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
613                  // check if there are still sampler engines connected to this device                   iterChan != mSamplerChannels.end(); iterChan++
614                  for (uint i = 0; i < SamplerChannels(); i++)              ) if (iterChan->second->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(iterChan->first) + " is still connected to the midi input device.");
615                      if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");  
616                fireMidiDeviceToBeDestroyed(pDevice);
617                  // disable device              MidiInputDeviceFactory::Destroy(pDevice);
618                  pDevice->StopListen();              fireMidiDeviceCountChanged(MidiInputDevices());
619            }
620        }
621    
622                  // remove device from the device list      void Sampler::DestroyAllMidiInputDevices() throw (Exception) {
623                  mMidiInputDevices.erase(iter);          /*
624             * In maps iterator invalidation occurs when the iterator point
625             * to the element that is being erased. So we need to copy the map
626             * by calling GetMidiInputDevices() to prevent that.
627             */
628            std::map<uint, MidiInputDevice*> devs = GetMidiInputDevices();
629            std::map<uint, MidiInputDevice*>::iterator iter = devs.begin();
630            for (; iter != devs.end(); iter++) {
631                MidiInputDevice* pDevice = iter->second;
632    
633                  // destroy and free device from memory              // skip non-autonomous devices
634                  delete pDevice;              if (!pDevice->isAutonomousDevice()) continue;
635    
636                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));              DestroyMidiInputDevice(pDevice);
                 break;  
             }  
637          }          }
638      }      }
639    
# Line 382  namespace LinuxSampler { Line 641  namespace LinuxSampler {
641          // create new device          // create new device
642          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
643    
644          // add new device to the midi device list          fireMidiDeviceCreated(pDevice);
645          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning          fireMidiDeviceCountChanged(MidiInputDevices());
                 if (!mMidiInputDevices[i]) {  
                         mMidiInputDevices[i] = pDevice;  
                         break;  
                 }  
         }  
   
         LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));  
646          return pDevice;          return pDevice;
647      }      }
648    
649        int Sampler::GetDiskStreamCount() {
650            int count = 0;
651            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
652    
653            for(; it != EngineFactory::EngineInstances().end(); it++) {
654                count += (*it)->DiskStreamCount();
655            }
656    
657            return count;
658        }
659    
660      int Sampler::GetVoiceCount() {      int Sampler::GetVoiceCount() {
661          int count = 0;          int count = 0;
662          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();          std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
# Line 408  namespace LinuxSampler { Line 671  namespace LinuxSampler {
671      void Sampler::Reset() {      void Sampler::Reset() {
672          // delete sampler channels          // delete sampler channels
673          try {          try {
674              while (true) {              RemoveAllSamplerChannels();
                     SamplerChannelMap::iterator iter = mSamplerChannels.begin();  
                     if (iter == mSamplerChannels.end()) break;  
                     RemoveSamplerChannel(iter->second);  
             }  
675          }          }
676          catch(...) {          catch(...) {
677              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
# Line 421  namespace LinuxSampler { Line 680  namespace LinuxSampler {
680    
681          // delete midi input devices          // delete midi input devices
682          try {          try {
683              while (true) {              DestroyAllMidiInputDevices();
                     MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();  
                     if (iter == mMidiInputDevices.end()) break;  
                     DestroyMidiInputDevice(iter->second);  
             }  
684          }          }
685          catch(...) {          catch(...) {
686              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
# Line 434  namespace LinuxSampler { Line 689  namespace LinuxSampler {
689    
690          // delete audio output devices          // delete audio output devices
691          try {          try {
692              while (true) {              DestroyAllAudioOutputDevices();
                     AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
                     if (iter == mAudioOutputDevices.end()) break;  
                     DestroyAudioOutputDevice(iter->second);  
             }  
693          }          }
694          catch(...) {          catch(...) {
695              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
# Line 453  namespace LinuxSampler { Line 704  namespace LinuxSampler {
704              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;              std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
705              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
706          }          }
707    
708            // unload all instrument editor DLLs
709            InstrumentEditorFactory::ClosePlugins();
710        }
711    
712        bool Sampler::EnableDenormalsAreZeroMode() {
713            Features::detect();
714            return Features::enableDenormalsAreZeroMode();
715        }
716    
717        void Sampler::fireStatistics() {
718            static const LSCPEvent::event_t eventsArr[] = {
719                LSCPEvent::event_voice_count, LSCPEvent::event_stream_count,
720                LSCPEvent::event_buffer_fill, LSCPEvent::event_total_voice_count
721            };
722            static const std::list<LSCPEvent::event_t> events(eventsArr, eventsArr + 4);
723    
724            if (LSCPServer::EventSubscribers(events))
725            {
726                LSCPServer::LockRTNotify();
727                std::map<uint,SamplerChannel*> channels = GetSamplerChannels();
728                std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
729                for (; iter != channels.end(); iter++) {
730                    SamplerChannel* pSamplerChannel = iter->second;
731                    EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
732                    if (!pEngineChannel) continue;
733                    Engine* pEngine = pEngineChannel->GetEngine();
734                    if (!pEngine) continue;
735                    fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
736                    fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
737                    fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
738                }
739    
740                fireTotalStreamCountChanged(GetDiskStreamCount());
741                fireTotalVoiceCountChanged(GetVoiceCount());
742    
743                LSCPServer::UnlockRTNotify();
744            }
745      }      }
746    
747    #if defined(WIN32)
748        static HINSTANCE dllInstance = NULL;
749    
750        String Sampler::GetInstallDir() {
751            char buf[MAX_PATH + 1];
752            if (GetModuleFileName(dllInstance, buf, MAX_PATH)) {
753                String s(buf);
754                size_t n = s.rfind('\\');
755                if (n != String::npos) {
756                    return s.substr(0, n);
757                }
758            }
759            return "";
760        }
761    #endif
762  } // namespace LinuxSampler  } // namespace LinuxSampler
763    
764    #if defined(WIN32)
765    extern "C" {
766        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
767        {
768            switch (reason) {
769            case DLL_PROCESS_ATTACH:
770                LinuxSampler::dllInstance = instance;
771                break;
772            }
773            return TRUE;
774        }
775    }
776    #endif
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